Home / 8,081.66-12,121.14-2,238.86

Finding the Fourth Proportional to 8,081.66, 12,121.14 and 2,238.86

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Solution

The fourth proportional to 8,081.66, 12,121.14 and 2,238.86 is: 3,357.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.66 : 12,121.14 = 2,238.86 : x
  2. Step 2: Convert to fraction form
    8,081.66/12,121.14 = 2,238.86/x
  3. Step 3: Cross multiply
    8,081.66x = 12,121.14 × 2,238.86
  4. Step 4: Simplify right side
    8,081.66x = 27,137,535.50
  5. Step 5: Solve for x
    x = 27,137,535.50/8,081.66
  6. Step 6: Final answer
    x = 3,357.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.